Company lists · Data refreshed September 2026

Top 25 International tax services based in Switzerland

RevenueBase identified 244 company matches for international tax services associated with Switzerland as of September 2026 and tracks 1,355 professional contacts across them, including 639 with verified work emails. Zurich is the largest hub.

This list covers company matches for international tax services associated with Switzerland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
244Companies
1,355Contacts tracked
639Verified emails
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The 25 largest international tax services based in Switzerland

Ranked by team size
Top 25 of 244 company matches for international tax services based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchZug, SwitzerlandHQ recorded Sep 20, 2026201-500171 contacts →

Exact match

“KENDRIS is an international advisory and fiduciary services firm for wealthy individuals, family offices, corporations and institutional clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202651-200120 contacts →

Exact match

“A reliable partner in legal and taxation matters is always important, both in the best-possible situation, when someone is planning an exciting new project, or in the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202651-20050 contacts →

Exact match

“Tax Partner AG is a leading independent tax boutique based in Zurich.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLugano, SwitzerlandHQ recorded Sep 20, 202651-20045 contacts →

Exact match

“fiduciariaMega SA offers entrepreneurs, companies and individuals a comprehensive range of national and international consultancy services designed to provide pragmatic…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“ADB Altorfer Duss & Beilstein is one of the leading tax law firms in Switzerland.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“At U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“PrimeTax provides superior tax consulting services to corporations and individuals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchCham, SwitzerlandHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Highly qualified for tailor-made service”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchGlattbrugg, SwitzerlandHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“MOORE Zürich AG - Treuhand- und Steuerberatung, Zürich-Glattbrugg Fachberatung und Dienstleistungen für natürliche und juristische Personen aus dem Inland und Ausland – Sie…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchLugano, SwitzerlandHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“Fidinam & Partners SA fornisce consulenza fiscale domestica e internazionale a persone fisiche e giuridiche.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchZug, SwitzerlandHQ recorded Sep 20, 20261-1017 contacts →

Exact match

“inVersa ist ein Unternehmen, welches Dienstleistungen in den Bereichen Treuhand, Steuer- und Unternehmensberatung, Umstrukturierungen, Nachfolgeberatung, Unternehmensbewertungen…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchZurich, SwitzerlandHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Sanders US Tax Services is a tax preparation, consulting and advisory firm for Americans living abroad and for anyone else looking for help when dealing with the US tax system.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchLugano, SwitzerlandHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“Cortesi & Associati SA è una società svizzera con sede a Lugano specializzata nella consulenza fiscale e aziendale.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchZug, SwitzerlandHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“Seit 1982 vertrauen nationale und internationale Gesellschaften und Privatpersonen in den Bereichen Steuern, Rechnungswesen, Unternehmensberatung und Wirtschaftsprüfung auf aidoo.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“Steuerberatung für Unternehmen und Privatpersonen I Advokatur I Treuhand I Business Software Lösungen”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLausanne, SwitzerlandHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“We provide accounting and payroll services and optimize your tax strategy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchZürich, SwitzerlandHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Als alteingesessene Steuerkanzlei betreuen wir seit 1928 hauptsächlich inländische Privatpersonen, Familien und Unternehmen.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchGeneva, SwitzerlandHQ recorded Sep 20, 20261-1011 contacts →

Exact match

“PRESENTATION Active in French-speaking Switzerland and in France in the field of individual and corporate taxation, Allo-Déclaration Suisse aims to make taxation accessible to all…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchGeneva, SwitzerlandHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Nos experts fiscaux et avocats – expérimentés et ultra spécialisés – vous accompagnent dans toutes vos problématiques fiscales, qu’elles soient personnelles, entrepreneuriales…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchZug, SwitzerlandHQ recorded Sep 20, 20261-1011 contacts →

Exact match

“Our promise to you: a bespoke service from a team of certified tax experts dedicated to resolving all your tax issues and questions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchPully, SwitzerlandHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“Les voies vers une situation financière sereine sont parsemées de défis complexes et d’opportunités à saisir.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchBasel, SwitzerlandHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“TaXperts specializes in professional income tax and advisory services for individuals living and working in Switzerland, with expertise in both Swiss and US tax services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchGeneva, SwitzerlandHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“CoRe Service provides individuals, entrepreneurs and families with high added value solutions in Switzerland and abroad.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“avacor ag in St.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchNeuchatel, SwitzerlandHQ recorded Sep 20, 202651-20010 contacts →

Exact match

“Vivatax vous donne accès aux meilleurs fiscalistes, comptables et conseillers financiers pour établir votre déclaration d’impôt.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 244 international tax services based in Switzerland

See the full list, filter by size, metro and specialty, and access 639 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax services based in Switzerland at a glance

As of Sep 20, 2026
47.2%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
22.1%Largest-city concentration · Zurich
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
181
11-50
49
51-200
7
201-500
1

Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 244 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Switzerland whose business descriptions match “international tax services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 639 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax services are there based in Switzerland?

RevenueBase identified 244 company matches for international tax services associated with Switzerland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kendris tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most international tax services?

Zurich leads with 54 company records, followed by Geneva (25) and Lugano (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 639 professional contacts with verified work emails tracked across these 244 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.